A polypyrrole-based solid-contact Pb2+-selective PVC-membrane electrode with a nanomolar detection limit

Jolanda Sutter, Ernö Lindner, R. Gyurcsányi, Ernö Pretsch

Research output: Contribution to journalArticle

92 Citations (Scopus)

Abstract

Ion-selective electrodes (ISE) based on conventional plasticized PVC membranes with solid inner contact (SC) have so far had unsatisfactory lower detection limits. Here it is shown that electropolymerization of pyrrole in the presence of potassium hexacyanoferrate(II)/(III) on Pt results in adequate inner contact for SC-ISE. The nanomolar lower detection limit achieved with the Pb2+-selective PVC membranes investigated is comparable with values obtained with optimized internal solutions of liquid-contact ISE.

Original languageEnglish
Pages (from-to)7-14
Number of pages8
JournalAnalytical and Bioanalytical Chemistry
Volume380
Issue number1
DOIs
Publication statusPublished - Sep 2004

Fingerprint

Ion-Selective Electrodes
Polyvinyl Chloride
Limit of Detection
Electrodes
Membranes
Pyrroles
Electropolymerization
Contacts (fluid mechanics)
Potassium
Liquids
polypyrrole

Keywords

  • Ion-selective electrode
  • Lower detection limit
  • Polypyrrole
  • Solid contact

ASJC Scopus subject areas

  • Analytical Chemistry
  • Clinical Biochemistry

Cite this

A polypyrrole-based solid-contact Pb2+-selective PVC-membrane electrode with a nanomolar detection limit. / Sutter, Jolanda; Lindner, Ernö; Gyurcsányi, R.; Pretsch, Ernö.

In: Analytical and Bioanalytical Chemistry, Vol. 380, No. 1, 09.2004, p. 7-14.

Research output: Contribution to journalArticle

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